mirror of
https://github.com/OPM/opm-simulators.git
synced 2025-02-25 18:55:30 -06:00
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/*
|
|
Copyright 2021 Equinor ASA
|
|
|
|
This file is part of the Open Porous Media project (OPM).
|
|
|
|
OPM is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OPM is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OPM. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef OPM_PRECONDITIONER_HEADER_INCLUDED
|
|
#define OPM_PRECONDITIONER_HEADER_INCLUDED
|
|
|
|
#include <opm/simulators/linalg/bda/opencl.hpp>
|
|
#include <opm/simulators/linalg/bda/ILUReorder.hpp>
|
|
|
|
namespace Opm
|
|
{
|
|
namespace Accelerator
|
|
{
|
|
|
|
|
|
class BlockedMatrix;
|
|
|
|
template <unsigned int block_size>
|
|
class Preconditioner
|
|
{
|
|
|
|
protected:
|
|
int N = 0; // number of rows of the matrix
|
|
int Nb = 0; // number of blockrows of the matrix
|
|
int nnz = 0; // number of nonzeroes of the matrix (scalar)
|
|
int nnzb = 0; // number of blocks of the matrix
|
|
int verbosity = 0;
|
|
|
|
std::shared_ptr<cl::Context> context;
|
|
std::shared_ptr<cl::CommandQueue> queue;
|
|
std::vector<cl::Event> events;
|
|
cl_int err;
|
|
|
|
Preconditioner(int verbosity_) :
|
|
verbosity(verbosity_)
|
|
{};
|
|
|
|
public:
|
|
enum PreconditionerType {
|
|
BILU0,
|
|
CPR,
|
|
BISAI
|
|
};
|
|
|
|
static std::unique_ptr<Preconditioner> create(PreconditionerType type, int verbosity, ILUReorder opencl_ilu_reorder);
|
|
|
|
// nested Preconditioners might need to override this
|
|
virtual void setOpencl(std::shared_ptr<cl::Context>& context, std::shared_ptr<cl::CommandQueue>& queue);
|
|
|
|
// apply preconditioner, x = prec(y)
|
|
virtual void apply(const cl::Buffer& y, cl::Buffer& x) = 0;
|
|
|
|
// analyze matrix, e.g. the sparsity pattern
|
|
// probably only called once
|
|
virtual bool analyze_matrix(BlockedMatrix *mat) = 0;
|
|
|
|
// create/update preconditioner, probably used every linear solve
|
|
virtual bool create_preconditioner(BlockedMatrix *mat) = 0;
|
|
|
|
// get reordering mappings
|
|
virtual int* getToOrder() = 0;
|
|
virtual int* getFromOrder() = 0;
|
|
|
|
// get reordered matrix
|
|
virtual BlockedMatrix* getRMat() = 0;
|
|
};
|
|
|
|
} //namespace Accelerator
|
|
} //namespace Opm
|
|
|
|
#endif
|